Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Inner structure of the many-body localization transition and the fulfillment of the Harris criterion
Jie Chen, Chun Chen, Xiaoqun Wang·Jan 20, 2024
We treat the disordered Heisenberg model in 1D as the standard model of many-body localization (MBL). Two new and independent order parameters stemming solely from the half-chain von Neumann entanglement entropy $S_{\textrm{vN}}$ are introduced to pr...
Exponentially slow thermalization and the robustness of Hilbert space fragmentation
Yiqiu Han, Xiao Chen, Ethan Lake·Jan 20, 2024
The phenomenon of Hilbert space fragmentation, whereby dynamical constraints fragment Hilbert space into many disconnected sectors, provides a simple mechanism by which thermalization can be arrested. However, little is known about how thermalization...
Adaptive Quantum Optimized Centroid Initialization
Nicholas R. Allgood, Ajinkya Borle, Charles K. Nicholas·Jan 20, 2024
Prototype-based clustering algorithms such as k-means are sensitive to the selection of initial cluster centroids, with poor initialization leading to slower convergence and suboptimal solutions trapped in local minima. We present Adaptive Quantum Op...
A multiple-circuit approach to quantum resource reduction with application to the quantum lattice Boltzmann method
Melody Lee, Zhixin Song, Sriharsha Kocherla +3 more·Jan 20, 2024
This work proposes a multi-circuit quantum lattice Boltzmann method (QLBM) algorithm that leverages parallel quantum computing to reduce quantum resource requirements. Computational fluid dynamics (CFD) simulations often entail a large computational ...
Does True Randomness Exist? Efficacy Testing IBM Quantum Computers via Statistical Randomness
Owen Root, M. Becker·Jan 20, 2024
The fundamental principles of quantum mechanics, such as its probabilistic nature, allow for the theoretical ability of quantum computers to generate statistically random numbers, as opposed to classical computers which are only able to generate pseu...
Lossy Compression for Schr\"odinger-style Quantum Simulations
Noah Huffman, Dmitri S. Pavlichin, T. Weissman·Jan 20, 2024
Simulating quantum circuits on classical hardware is a powerful and necessary tool for developing and testing quantum algorithms and hardware as well as evaluating claims of quantum supremacy in the Noisy Intermediate-Scale Quantum (NISQ) regime. Sch...
Trade-offs between classical and quantum space using spooky pebbling
Arend-Jan Quist, Alfons Laarman·Jan 19, 2024
Pebble games are used to study space/time trade-offs. Recently, spooky pebble games were introduced to study classical space / quantum space / time trade-offs for simulation of classical circuits on quantum computers. In this paper, the spooky pebble...
Thresholds for the distributed surface code in the presence of memory decoherence
Sébastian de Bone, Paul Möller, Conor E. Bradley +2 more·Jan 19, 2024
In the search for scalable, fault-tolerant quantum computing, distributed quantum computers are promising candidates. These systems can be realized in large-scale quantum networks or condensed onto a single chip with closely situated nodes. We presen...
Coherent Control of the Fine-Structure Qubit in a Single Alkaline-Earth Atom.
Govind Unnikrishnan, Philipp Ilzhofer, Achim Scholz +10 more·Jan 19, 2024
We report on the first realization of a novel neutral atom qubit encoded in the spin-orbit coupled metastable states ^{3}P_{0} and ^{3}P_{2} of a single ^{88}Sr atom trapped in an optical tweezer. Raman coupling of the qubit states promises rapid sin...
Logical Noise Bias in Magic State Injection
Nicholas Fazio, Robin Harper, Stephen D. Bartlett·Jan 19, 2024
Fault-tolerant architectures aim to reduce the noise of a quantum computation. Despite such architectures being well studied a detailed understanding of how noise is transformed in a fault-tolerant primitive such as magic state injection is currently...
Area and Power Efficient FFT/IFFT Processor for FALCON Post-Quantum Cryptography
Ghada Alsuhli, H. Saleh, Mahmoud Al-Qutayri +2 more·Jan 19, 2024
Quantum computing is an emerging technology on the verge of reshaping industries, while simultaneously challenging existing cryptographic algorithms. FALCON, a recent standard quantum-resistant digital signature, presents a challenging hardware imple...
Reconfigurable Intelligent Surface (RIS)-Assisted Entanglement Distribution in FSO Quantum Networks
Mahdi Chehimi, M. Elhattab, Walid Saad +4 more·Jan 19, 2024
Quantum networks (QNs) relying on free-space optical (FSO) quantum channels can support quantum applications in environments wherein establishing an optical fiber infrastructure is challenging and costly. However, FSO-based QNs require a clear line-o...
QUASIM: Quantum Computing Enhanced Service Ecosystem for Simulation in Manufacturing
Wolfgang Maass, Ankit Agrawal, Alessandro Ciani +14 more·Jan 19, 2024
Quantum computing (QC) and machine learning (ML), taken individually or combined into quantum-assisted ML (QML), are ascending computing paradigms whose calculations come with huge potential for speedup, increase in precision, and resource reductions...
Digital-Analog Quantum Computing and Algorithms
Ana Martin·Jan 19, 2024
This Thesis delves into the development and implementation of quantum algorithms using the digital-analog quantum computing (DAQC) paradigm. It provides a comparative analysis of the performance of DAQC versus traditional digital approaches, particul...
Floquet control of interactions and edge states in a programmable quantum simulator
Or Katz, Lei Feng, Diego Porras +1 more·Jan 18, 2024
Quantum simulators based on trapped ions enable the study of spin systems and models with rich dynamical phenomena. The Su-Schrieffer-Heeger (SSH) model for fermions in one dimension is a canonical example that can support a topological insulator pha...
Time-Efficient Quantum Entropy Estimator via Samplizer
Qisheng Wang, Zhicheng Zhang·Jan 18, 2024
Entropy is a measure of the randomness of a system. Estimating the entropy of a quantum state is a basic problem in quantum information. In this paper, we introduce a time-efficient quantum approach to estimating the von Neumann entropy $S(ρ)$ and Ré...
Universal adjointation of isometry operations using conversion of quantum supermaps
Satoshi Yoshida, A. Soeda, M. Murao·Jan 18, 2024
Identification of possible transformations of quantum objects including quantum states and quantum operations is indispensable in developing quantum algorithms. Universal transformations, defined as input-independent transformations, appear in variou...
A Novel Noise-Aware Classical Optimizer for Variational Quantum Algorithms
Jeffrey M. Larson, M. Menickelly, Jiahao Shi·Jan 18, 2024
A key component of variational quantum algorithms (VQAs) is the choice of classical optimizer employed to update the parameterization of an ansatz. It is well recognized that quantum algorithms will, for the foreseeable future, necessarily be run on ...
Quantum interface for telecom frequency conversion based on diamond-type atomic ensembles
Po-Han Tseng, Linghui Chen, Jiun-Shiuan Shiu +1 more·Jan 18, 2024
In a fiber-based quantum network, utilizing the telecom band is crucial for long-distance quantum information (QI) transmission between quantum nodes. However, the near-infrared wavelength is identified as optimal for processing and storing QI throug...
Qadence: a differentiable interface for digital-analog programs
Dominik Seitz, Niklas Heim, João P. Moutinho +9 more·Jan 18, 2024
Digital-analog quantum computing (DAQC) is an alternative paradigm for universal quantum computation combining digital single-qubit gates with global analog operations acting on a register of interacting qubits. Currently, no available open-source so...